On Wed, 27 Mar 2002, Jakob Østergaard wrote:
> On Mon, Mar 25, 2002 at 12:22:39PM -0700, Arthur H. Edwards wrote:
> > Is there a command to purge files (I know bpsh -a rm /tmp/*.* doesn't work)
> > to remove files from slave nodes? Other than reformatting, can one clean up?
> Please note that rm /tmp/*.* will only delete files containing a period in
> their names...
More subtlety, doing
bpsh -a rm /tmp/*.*
will do filename globbing on the originating machine (the master). Thus
it will only clear filenames that exist both on the master and on the slave.
> Also, tmpwatch does this job in most distributions already, fully
> automated. It will delete any file in /tmp that hasn't been accessed
> for a number of days (typically 30 I think, but easily adjustable).
The tmpwatch program is reasonable for cleaning up "user droppings" in a
workstation environment, but it isn't as useful on a cluster with
per-node /tmp directories. Most programs usually clean up their /tmp files.
Those that don't tend to spew forth too many files to handle with a 30
day delay.
Note that in the default Scyld system the slaves run no extraneous
daemons such as 'cron' or 'at'. Thus 'tmpwatch' (if activated) is run
only on the master.
--
Donald Becker becker at scyld.com
Scyld Computing Corporation http://www.scyld.com
410 Severn Ave. Suite 210 Second Generation Beowulf Clusters
Annapolis MD 21403 410-990-9993